From: David Yang <mmyangfl@gmail.com>
To: netdev@vger.kernel.org
Cc: David Yang <mmyangfl@gmail.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@kernel.org>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Stanislav Fomichev <sdf@fomichev.me>,
Nicolai Buchwitz <nb@tipi-net.de>,
Jacob Keller <jacob.e.keller@intel.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH net 05/10] net: mv643xx: move setting of netops to fix crash
Date: Thu, 8 Oct 2026 10:26:47 +0800 [thread overview]
Message-ID: <20261008022656.3592191-6-mmyangfl@gmail.com> (raw)
In-Reply-To: <20261008022656.3592191-1-mmyangfl@gmail.com>
mv643xx_eth_probe() connects the PHY before dev->netdev_ops is
assigned. phy_attach_direct() -> phy_link_topo_add_phy() reads
dev->netdev_ops through netdev_need_ops_lock() since the commit in
question, so probing crashes with a NULL pointer dereference when
CONFIG_NET_SHAPER is enabled.
Assign netdev_ops before the PHY attach, as was done for emac in commit
7c9f391ec89c ("net: emac: move setting of netops to fix crash").
Fixes: ded86da4bbb7 ("net: ethtool: relax ethnl_req_get_phydev() locking assertion")
Signed-off-by: David Yang <mmyangfl@gmail.com>
---
drivers/net/ethernet/marvell/mv643xx_eth.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 9caa1e47c174..38b4d65f58a5 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -3171,6 +3171,8 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
netif_set_real_num_tx_queues(dev, mp->txq_count);
netif_set_real_num_rx_queues(dev, mp->rxq_count);
+ dev->netdev_ops = &mv643xx_eth_netdev_ops;
+
err = 0;
if (pd->phy_node) {
phydev = of_phy_connect(mp->dev, pd->phy_node,
@@ -3221,8 +3223,6 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
}
dev->irq = irq;
- dev->netdev_ops = &mv643xx_eth_netdev_ops;
-
dev->watchdog_timeo = 2 * HZ;
dev->base_addr = 0;
--
2.53.0
next prev parent reply other threads:[~2026-10-08 2:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-08 2:26 [PATCH net 00/10] net: Move " David Yang
2026-10-08 2:26 ` [PATCH net 01/10] net: hisilicon: hisi_femac: " David Yang
2026-10-08 11:51 ` Jijie Shao
2026-10-08 2:26 ` [PATCH net 02/10] net: hisilicon: hip04_eth: " David Yang
2026-10-08 8:30 ` Maxime Chevallier
2026-10-08 2:26 ` [PATCH net 03/10] net: ethernet: actions: " David Yang
2026-10-08 2:26 ` [PATCH net 04/10] net: ethernet: adi: " David Yang
2026-10-08 2:26 ` David Yang [this message]
2026-10-08 2:26 ` [PATCH net 06/10] net: au1000: move " David Yang
2026-10-08 8:31 ` Maxime Chevallier
2026-10-08 2:26 ` [PATCH net 07/10] net: ethoc: " David Yang
2026-10-08 2:26 ` [PATCH net 08/10] net: ethernet: aeroflex: " David Yang
2026-10-08 2:26 ` [PATCH net 09/10] net: ti: icssm-prueth: Move " David Yang
2026-10-08 2:26 ` [PATCH net 10/10] microchip: lan865x: move " David Yang
2026-10-08 8:32 ` Maxime Chevallier
2026-10-08 12:10 ` [PATCH net 00/10] net: Move " Jijie Shao
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